• 로봇학회논문지
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• 제3권3호
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• pp.186-193
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• 2008

We propose a novel real-time obstacle avoidance method for rescue robots. This method, named the ELA(Emergency Level Around), permits the detection of unknown obstacles and avoids collisions while simultaneously steering the mobile robot toward safe position. In the ELA, we consider two sensor modules, PSD(Position Sensitive Detector) infrared sensors taking charge of obstacle detection in short distance and LMS(Laser Measurement System) in long distance respectively. Hence if a robot recognizes an obstacle ahead by PSD infrared sensors first, and judges impossibility to overcome the obstacle based on driving mode decision process, the order of priority is transferred to LMS which collects data of radial distance centered on the robot to avoid the confronted obstacle. After gathering radial information, the ELA algorithm estimates emergency level around a robot and generates a polar histogram based on the emergency level to judge where the optimal free space is. Finally, steering angle is determined to guarantee rotation to randomly direction as well as robot width for safe avoidance. Simulation results from wandering in closed local area which includes various obstacles and different conditions demonstrate the power of the ELA.

• 한국ITS학회 논문지
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• 제12권6호
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• pp.29-36
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• 2013

본 연구에서는 구미시 일부지역을 대상으로 소개(疏開, 혹은 대피) 계획(evacuation planning)수립 기초연구를 위해 가능한 한 실제 네트워크 및 교통특성 자료를 기반으로 미시적 교통시뮬레이션을 이용하여 대안별 특성을 분석하였다. 긴급 상황이 발생했을 경우를 가정한 시뮬레이션을 통해 기존 교통신호 체계를 그대로 유지하는 경우에서의 소개시간과 본 연구에서 제안한 차로기반 경로유도(lane-based routing) 방식을 비교한 결과, 긴급 상황이 발생했을 시 기존 신호체계를 그대로 유지하는 경우에 있어 소개명령의 차이는 모든 차량을 소개시키는데 거의 영향을 미치지 않는 것으로 나타났다. 그에 비해 본 연구에서 제시한 차로기반 경로유도 방식의 경우 기존 방식에 비해 소개시간과 총 통행시간에서 각각 28~54%와 82~90%의 단축효과가 있음을 확인하였으며, 특히 소개시간을 짧게 해야 하는 급박한 상황이 발생했을 때 소개를 위한 시간단축을 확인하였다.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2009년도 추계학술대회 논문집
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• pp.145-148
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• 2009

비상등 점등시 수백[lx]에서 1.0[lx]로 순간적으로 조도가 변한다. 급격한 조도변화는 암순응 시간을 증가시키며 대피자의 시력과 장애물 인식능력을 감소시킨다. 대피자는 이런 이유로 불안감과 공포감 느낄 뿐만 아니라 2차 사고로 확대되어 더 심각한 피해를 입을 수 있다. 본 연구에서는 이와 같은 암순응 문제점을 개선하고자 광속비율의 시간차이를 설정하여 조도를 조정하는 겸용형 비상등기구에 관해 연구하였다. 단, 경제성을 고려하여 비상조명등의 수와 축전지 용량을 증가시키지 않는 조건으로 진행하였다.

• 대한간호학회지
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• 제37권5호
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• pp.762-771
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• 2007

Purpose: The purpose of this study was to identify the reactions of emergency department nurses to violence. Methods: Q-methodology which provides a method of analyzing the subjectivity of each item was used. Thirty emergency department nurses classified 33 selected Q-statements into a normal distribution using a 9 point scale. The collected data was analyzed using the Quanl PC Program. Results: Three types of reactions to violence were identified. The first type(emotional and physical reactions) showed a sense of regret on the selection of an occupation and emotional and physical reactions such as anxiety, fear, depression, hopelessness, heart palpitations and trembling hands due to the violence. The second type(problem solving) actively coped to prevent the occurrence of violence, grasped the causes of violence and sought out a problem solving plan. The third type(anger reactions) felt a lot of anger against violence, and resented their reality of working under conditions of inadequately secured facilities and systems. Conclusion: The emotional and physical reactions type and the anger reactions type should be required to attend educational programs to improve attitudes and abilities to solve the problems in a more active and positive manner.

• 대한임상독성학회지
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• 제3권2호
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• pp.126-129
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• 2005

Valproic acid (VPA) is used in the management of a variety of conditions including simple and complex absence seizure disorder. bipolar disorder, and migraine prophylaxis. Clinical manifestation of VPA overdose vary in severity from mild confusion and lethargy to severe coma and death. The treatment of VPA toxicity is mainly supportive. There is no specific antidote, nor are there specific guidelines for the management of VPA intoxication. Anecdotal reports describe the efficacy of naloxone and L-carnitine, but the data are insufficient to make strong conclusions. Various techniques of extracoporeal therapy for the management of VPA toxicity have been described, but none has prevailed as standard therapy. We report a patient with VPA overdose who was successfully treated with hemoperfusion with activated charcoal and L-carnitine. VPA levels of the patient was more than 1,000 ${\mu}g$/ml and was normalized after 3 times hemoperfusion. The patient was injected with L-carnitine by maximum 600 mg/kg/day for 5days without complications.

• 한국응급구조학회지
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• 제20권2호
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• pp.65-79
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• 2016

Purpose: This study was performed to evaluate the influence of field practice on subjective well-being and domains of life satisfaction in paramedic students. Methods: A self-reported questionnaire was completed by 143 paramedic students from March 5 to 31, 2016. The questionnaire consisted of subjective wellbeing, openness to experience, and domains of life satisfaction. The statistical analysis was done with SPSS/WIN 22.0. Results: The number of field practice had a lesser influence on degree of life satisfaction and positive emotions. Field practice did not influence negative emotions. Those who were open to experience tended to have higher degrees of personal satisfaction and competence irrespective of field practice. Conclusion: Openness to experience can enhance the life satisfaction and competence against the stressful conditions paramedic students experience in field practice.

• 보건행정학회지
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• 제31권4호
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• pp.399-408
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• 2021

The emergency medical service system in Korea was built upon the Emergency Medical Service Act, 1995 to respond adequately to be much in demand for emergency medical services. In addition, the government recognized the importance of the trauma care system and set out to plan for the designation and establishment of the regional trauma center by 2012. This study aimed to investigate features of quality management and trauma fee schedule on better understanding of trauma care system. First, quality management of the regional trauma center has been implemented by several quality programs involved in quality assessment, committee on trauma quality management, and mortality and morbidity conference. Second, the trauma fee schedule has reflected a specific quality of severe traumatic conditions and added the result to it, which are graded A, B, and C according to quality assessment. Although the government has contributed to instituting a trauma quality assessment program and trauma fee schedule for the regional trauma center, it could not lead to such a fixed standard for quality management of them. Therefore, it will promote discussion on the sustainability of the regional trauma center that requires reducing preventable trauma death rate and the way to apply comprehensive quality management.

• 한국산업융합학회 논문집
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• 제25권6_3호
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• pp.1155-1163
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• 2022

This study proposes a technology to ensure the seismic stability of a 1,000 kW diesel engine-type emergency generator by applying a seismic isolated bed system. The technology allows the static analysis by making the first natural frequency of the installed entire emergency generator larger than the earthquake cutoff frequency of 33 Hz. First a three dimensional model for the generator was made with simplification for mode analysis. A new bed system with springs, shock absorbers, stoppers was then devised. Next, The mode analysis for the finite element model equipped by the bed system was performed. the 1^st natural frequency above 33 Hz, the seismic safety cutoff frequency, was calculated to be 152.92 Hz. Finally, based on the seismic stability theory, the von-Mises equivalent stresses derived by structural analysis under the Upset and Faulted conditions were 0.01603 Mpa, and 32.06 Mpa, respectively. so seismic stability was confirmed.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2023년도 학술발표회
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• pp.384-384
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• 2023

To enable the government and local authorities to anticipate the public's response to emergency measures, it is crucial to formulate theories on residents' behavioral reactions and establish appropriate evaluation models that cater to local conditions. However, prior research has primarily relied on simple surveys to assess individual disaster preparedness progress, while in the United States, the National Household Survey explores the behavior, attitudes, and motivations of citizens. Nonetheless, relying on simple survey analyses presents limitations. Therefore, our study aims to develop a social science behavioral analysis model that includes risk perception and emergency preparedness evaluation items for drought. We will achieve this by examining both domestic and foreign behavioral models. The ultimate goal is to present an effective response strategy for managing drought risk that incorporates the developed model. The drought risk perception and behavioral model employed in this study involves evaluating individual risk perception of drought disasters, individual effectiveness, and motivation analysis for drought disasters, government satisfaction with drought disaster management, and individual acceptance of drought prevention policies.

• 대한전자공학회논문지SP
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• 제48권4호
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• pp.142-152
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• 2011

일반적으로 기존의 비상 대피용 유도 시스템은 비상등 또는 유도 LED와 같이 시각적인 부분에 의존하고 있다. 실제로 화재인 경우에는 연기 때문에 시야 확보가 힘든 경우가 많다. 본 논문에서는 이런 경우를 대비하여 방향성을 가진 음향을 사용하여 비상 대피 유도 시스템을 설계 및 구현하였다. 이 때 모든 스피커는 편리한 설치를 위해 오디오 직렬 전송 기법을 사용하였다. 대피 경로를 위한 최단 경로 알고리즘은 플로이드 알고리즘을 사용하였다. 오디오 직렬 전송 기법의 단점인 단선에 대한 대책으로 자동 고장 진단 기법을 제안하였다. 시스템 제어와 감시는 PC와 USB 프로토콜 연결을 통하여 이루어진다. 제안한 시스템은 가상의 비상 대피 환경에서 표본 집단의 대피 실험의 효율성을 검증했다. 결론적으로 제안된 시스템은 비상 상황에서 대피율의 증가를 확인하였고 오디오 직렬 전송 기법으로 쉽고 저가의 비용으로 설치 가능하다.